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Post by sharp422 on Jun 6, 2013 23:05:25 GMT -5
What does orange flames out the headers mean. I know blue means rich. Im only gettin em at if i hammer into a rev. If i easy into a high rev i get nothing. And no, its not a header gasket leak. Thnks
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Post by jugulator on Jun 7, 2013 9:37:41 GMT -5
What does orange flames out the headers mean. I know blue means rich. Im only gettin em at if i hammer into a rev. If i easy into a high rev i get nothing. And no, its not a header gasket leak. Thnks this is how I see it,,,, orange flame is fuel thats being burned in the exhaust,,,, after the combustion chamber,, blue flame is from the combustion chamber..complete combustion... ............lenny |
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Post by rhull1977 on Jun 7, 2013 12:19:13 GMT -5
how long do you let it run does it get hot? sounds like it is a little out of time to me
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Post by sharp422 on Jun 7, 2013 12:25:39 GMT -5
It does it wen its cold n hot. The timin is right i set it wherever it cranks easiest wen its hot. So maybe it has too much fuel?
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Post by fordpower111 on Jun 7, 2013 15:23:17 GMT -5
I would run it as is that to much fuel will help when it gets hot.
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Post by muddigger750 on Jun 9, 2013 13:24:04 GMT -5
it is probably just exess fuel. if you have a collector, the exess fuel fumes is going to build up and when it backfires the fumes is contained within the collector until the fumes burns out. with 4 in a rows there is no containment for the exess fuel fumes so unless a constant flow of exess fuel is coming out, they don't usually stay burning. that usually happens afterhigh rpm for a while then suddenly letting off the gas, the timing and compression cant keep up with the fuel so it is ejected out of the cylinders with the exhaust and ignited by a backfire. hope that helps,
-Garrett
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Post by sharp422 on Jun 9, 2013 17:01:40 GMT -5
I have a holley 4412 on the engine. Should i drop the float a little for less fuel? Thnks
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Post by ccdemo71 on Jun 9, 2013 17:09:12 GMT -5
It does it wen its cold n hot. The timin is right i set it wherever it cranks easiest wen its hot. So maybe it has too much fuel? And how is that correct timing? I don't understand the theory behind setting timing so car starts easy but runs like crap. Get your timing set right so the engine runs at its best and you won't have to restart and it will build less heat. |
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Post by sharp422 on Jun 9, 2013 18:05:13 GMT -5
Mine engine run great when theyre set to fire hot. If they cant start up wen hot then how is it timed right for a derby?
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Post by fordpower111 on Jun 9, 2013 21:03:42 GMT -5
No matter what brand engine you run they all can die you just never know when , but in a derby you know that there is a pretty good chance that the engine could get hot so why not set it up for that? If it dies when it gets hot whats all that power going to do for you if it won't fire back up. A lot depends on type of fuel your running also. We don't retard our timing but the engine will run hot if needs be there's no way we could reach or distributor to retard it to help it start anyway.  |
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Post by sharp422 on Jun 9, 2013 22:46:36 GMT -5
Exactly. On my current engine, it fires up easiest wen hot at 6 degrees advanced
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Post by muddigger750 on Jun 9, 2013 23:21:37 GMT -5
for mine, i run a 460 in my derby truck now. just take a pen and put it threw the spark plug hole on cylinder 1,and crank the flywheel until the pen shows you the piston is at its highest point absolutely. and your usually good to go, and yes i would lower the float a little. goodluck, messege if you have any specific questions
- Garrett
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Post by ccdemo71 on Jun 10, 2013 7:59:17 GMT -5
Mine engine run great when theyre set to fire hot. If they cant start up wen hot then how is it timed right for a derby? I suppose that's why groppe, Baldwin, colyer, Kinsey, etc. Spend countless hours every year tuning the engines they sell to run at max efficiency. Tune the motor to run its very best and it will run cooler, use less fuel, and be harder to kill, not to mention the fact that your throttle response would be significantly better and that is the difference between a broken ball joint and a hit in the door bar. If your stock starter can't turn it over when timed right then buy a high torque starter. |
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Post by rhull1977 on Jun 10, 2013 11:42:07 GMT -5
I will say that I timemy sbc at 30-34 degrees at 3000 rpms with the vac advance hooked up and never have a problem with it starting hot, but fuel type has alot to do with it.
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leadfoot455
Heat Winner
I drive this way on purpose!
Posts: 604
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Post by leadfoot455 on Jun 10, 2013 13:18:57 GMT -5
I will say that I timemy sbc at 30-34 degrees at 3000 rpms with the vac advance hooked up and never have a problem with it starting hot, but fuel type has alot to do with it. Honestly I'm not sure but I thought the vacuume advannce was only needed at high speeds? I have never hooked on up and never had a problem?? |
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